Beam clamp



FIG. 1 is a side view of my design for a beam clamp in a state of use;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a rear, top perspective view thereof; and,

FIG. 6 is a front, top perspective view thereof.

The broken lines in the FIG. 1 depict environment of the beam clamp and form no part of the claimed design. 

CLAIM The ornamental design for a beam clamp, as shown and described. 